Nanostructure evolution during thermal treatment of polyimide-fullerene composites as revealed by WAXS and SAXS

被引：8

作者：

Cagiao, M. E.

Pozdnyakov, A. O.

Krumova, M.

Kudryavtsev, V. V.

Calleja, F. J. Balta

机构：

[1] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain

[2] Russian Acad Sci, Inst Problems Mech Engn, St Petersburg 199178, Russia

[3] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2007年 / 67卷 / 10期

关键词：

nanostructure (A); polyimide (A); fullerene C-60 (A); x-ray diffraction (D); heat treatment (E);

D O I：

10.1016/j.compscitech.2005.11.025

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The nanostructure formation in polyimide-fullerene composites during thermal treatment was investigated "in situ", by means of wide-angle (WAXS) and small-angle X-ray scattering techniques. The WAXS patterns of the PI composites do not reveal the presence of C-60 reflections. However, the Pl/C-60 Composite, obtained by adding the C60 solution to the diamines-solution during the first step of the reaction (preparation of the polyamic acid, PAA), shows a maximum at small X-ray scattering angles. Results show that this intensity maximum is markedly affected by thermal treatment of the Pl/C60 composite, disappearing at high temperature. From "in situ" X-ray scattering experiments, the "manner" in which the C-60 nanoparticles are added to the other reactants and influences the properties of the final polymer is discussed. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2175 / 2182

页数：8

共 42 条

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